*{
    margin: 0;
    padding: 0;
}
.layout2{
    width:100vw;
    height: 100vh;
    background-color: skyblue;
    position: relative;
}
.head{
    width: 100vw;
    height: 15vh;
    background-color: blue;
    position:absolute;
}
.footer{
    width: 100vw;
    height: 10vh;
    background-color: blue;
    bottom: 0px;
    position: absolute;
}